The invention relates to a connection wig capable of achieving fast hair style changing. The connection wig comprises a wig body and is characterized in that one end of the wig body is parallelly nested into a jacket, the jacket is fixedly connected into a fixing ring in a pressed manner, the back of the fixing ring is fixedly connected with the back of a lower elastic piece, two ends of the lower elastic piece are symmetrically connected with two ends of an upper elastic piece through rivets, a pull piece is integrally vertically connected between the upper elastic piece and the lower elastic piece, one ends of shifting pieces are symmetrically connected to two sides of the pull piece, and the other ends of the shifting pieces extend to the rivets at the ends of the upper elastic piece and the lower elastic piece. The connection wig has the advantages that the wig is simple in structure, reasonable in design and novel and unique in concept, real hair is clamped by an arc-shaped ring formed by the connected upper elastic piece and lower elastic piece and the shifting pieces, the upper elastic piece and the lower elastic piece are exposed out of the real hair to achieve a decoration effect, the connection point of the wig can be blocked, an extremely high real hair effect is achieved, and hair styles can be changed at will.